Merge "ICU4J AlphabeticIndex tests to improve coverage." into nyc-dev

2 files changed, 102 insertions, 0 deletions

diff --git a/android_icu4j/cts-coverage/src/main/tests/android/icu/cts/coverage/text/AlphabeticIndexTest.java b/android_icu4j/cts-coverage/src/main/tests/android/icu/cts/coverage/text/AlphabeticIndexTest.java
new file mode 100644
index 000000000..ed45929e5
--- /dev/null
+++ b/android_icu4j/cts-coverage/src/main/tests/android/icu/cts/coverage/text/AlphabeticIndexTest.java
@@ -0,0 +1,101 @@
+/*
+ * Copyright (C) 2016 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package android.icu.cts.coverage.text;
+
+import android.icu.text.AlphabeticIndex;
+import android.icu.util.ULocale;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.junit.runners.JUnit4;
+
+import java.util.Locale;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertNotNull;
+import static org.junit.Assert.assertNull;
+
+@RunWith(JUnit4.class)
+public class AlphabeticIndexTest {
+    @Test
+    public void testAddLabels_Locale() {
+        AlphabeticIndex<?> ulocaleIndex = new AlphabeticIndex<>(ULocale.CANADA);
+        AlphabeticIndex<?> localeIndex = new AlphabeticIndex<>(Locale.CANADA);
+
+        ulocaleIndex.addLabels(ULocale.SIMPLIFIED_CHINESE);
+        localeIndex.addLabels(Locale.SIMPLIFIED_CHINESE);
+
+        assertEquals(ulocaleIndex.getBucketLabels(), localeIndex.getBucketLabels());
+    }
+
+    @Test
+    public void testGetRecordCount_empty() {
+        assertEquals(0, new AlphabeticIndex<>(ULocale.CANADA).getRecordCount());
+    }
+
+    @Test
+    public void testGetRecordCount_withRecords() {
+        assertEquals(1, new AlphabeticIndex<>(ULocale.CANADA).addRecord("foo", null)
+                .getRecordCount());
+    }
+
+    /**
+     * Check that setUnderflowLabel/setOverflowLabel/setInflowLabel correctly influence the name of
+     * generated labels.
+     */
+    @Test
+    public void testFlowLabels() {
+        AlphabeticIndex<?> index = new AlphabeticIndex<>(ULocale.ENGLISH)
+                .addLabels(ULocale.forLanguageTag("ru"));
+        index.setUnderflowLabel("underflow");
+        index.setOverflowLabel("overflow");
+        index.setInflowLabel("inflow");
+        index.addRecord("!", null);
+        index.addRecord("\u03B1", null); // GREEK SMALL LETTER ALPHA
+        index.addRecord("\uab70", null); // CHEROKEE SMALL LETTER A
+
+
+        AlphabeticIndex.Bucket<?> underflowBucket = null;
+        AlphabeticIndex.Bucket<?> overflowBucket = null;
+        AlphabeticIndex.Bucket<?> inflowBucket = null;
+        for (AlphabeticIndex.Bucket<?> bucket : index) {
+            switch (bucket.getLabelType()) {
+                case UNDERFLOW:
+                    assertNull(underflowBucket);
+                    underflowBucket = bucket;
+                    break;
+                case OVERFLOW:
+                    assertNull(overflowBucket);
+                    overflowBucket = bucket;
+                    break;
+                case INFLOW:
+                    assertNull(inflowBucket);
+                    inflowBucket = bucket;
+                    break;
+            }
+        }
+        assertNotNull(underflowBucket);
+        assertEquals("underflow", underflowBucket.getLabel());
+        assertEquals(1, underflowBucket.size());
+
+        assertNotNull(overflowBucket);
+        assertEquals("overflow", overflowBucket.getLabel());
+        assertEquals(1, overflowBucket.size());
+
+        assertNotNull(inflowBucket);
+        assertEquals("inflow", inflowBucket.getLabel());
+        assertEquals(1, inflowBucket.size());
+    }
+}
diff --git a/android_icu4j/cts-coverage/src/main/tests/android/icu/cts/coverage/text/TestAll.java b/android_icu4j/cts-coverage/src/main/tests/android/icu/cts/coverage/text/TestAll.java
index 142460676..20a0e1d8b 100644
--- a/android_icu4j/cts-coverage/src/main/tests/android/icu/cts/coverage/text/TestAll.java
+++ b/android_icu4j/cts-coverage/src/main/tests/android/icu/cts/coverage/text/TestAll.java
@@ -24,6 +24,7 @@ import org.junit.runners.Suite;
 @RunWith(Suite.class)
 // Add classes in alphabetical order with a trailing comma even if it's the last entry.
 @Suite.SuiteClasses({
+        AlphabeticIndexTest.class,
         RelativeDateTimeFormatterTest.class,
         TimeZoneNamesTest.class,
         UnicodeSetTest.class,